I'm curious as to whether anyone has experienced a sudden drop in FEV 1 test.
for years I have been 31/32% and in the last year dropped to 25%. i have had a few incidences where i took steroids because i felt like an exacerbation was kicking in, but was able to stop it with 2-3 days of steroids. could these incidences cause this or could it be my age...77 😏